Public Overridable Function Contains ( _
    item As Object _
) As Boolean

Dim instance As ArrayList
Dim item As Object
Dim returnValue As Boolean

returnValue = instance.Contains(item)

public virtual bool Contains(
    Object item
)

public:
virtual bool Contains(
    Object^ item
)

public function Contains(
    item : Object
) : boolean

Implements

This method performs a linear search; therefore, this method is an O(n) operation, where n is Count.

This method determines equality by calling Object..::.Equals.

Starting with the .NET Framework 2.0, this method uses the collection’s objects’ Equals and CompareTo methods on item to determine whether item exists. In the earlier versions of the .NET Framework, this determination was made by using the Equals and CompareTo methods of the item parameter on the objects in the collection.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

.NET Framework

.NET Compact Framework

XNA Framework

Reference

Other Resources